package com.dncrm.interceptor.shiro;


import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;


/**
 * @author DNCRM
 *         2015-3-6
 */
public class ShiroRealm extends AuthorizingRealm {

    /*
     * 登录信息和用户验证信息验证(non-Javadoc)
     * @see org.apache.shiro.realm.AuthenticatingRealm#doGetAuthenticationInfo(org.apache.shiro.authc.AuthenticationToken)
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {

        String username = (String) token.getPrincipal();                //得到用户名
        String password = new String((char[]) token.getCredentials());    //得到密码

        if (null != username && null != password) {
            return new SimpleAuthenticationInfo(username, password, getName());
        } else {
            return null;
        }

    }

    /*
     * 授权查询回调函数, 进行鉴权但缓存中无用户的授权信息时调用,负责在应用程序中决定用户的访问控制的方法(non-Javadoc)
     * @see org.apache.shiro.realm.AuthorizingRealm#doGetAuthorizationInfo(org.apache.shiro.subject.PrincipalCollection)
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection pc) {

        System.out.println("========2");

        return null;
    }

}
